Ultra high purity pressure switch_P840 series (316L type)
P840 series (316L type)
Service intended
P840 series are specially designed for the ultra-high purity gas distribution system used in a semiconductor, electronic, medical, biotechnology and pharmaceutical industry.
| Nominal diameter | 50 mm (2") |
| Switch point accuracy | ±2.0 % of full scale |
| Scale range | 0 ~ 28 MPa |
| Working pressure | Steady pressure : 75 % of full scale value Fluctuating pressure : 67 % of full scale value |
| Working temperature | Ambient : -20 ~ 65 °C Fluid : Max. 100 °C |
| Temperature effect | Accuracy at temperature above and below the reference temperature (20 ℃) will be effected by approximately ±0.4 % per 10 ℃ of full scale |
Standard features
Mechanical
| Pressure connection | Type 316L SS electropolished low mount or center back mount surface finish Ra≤0.25 ㎛ ■ ¼" NPT male thread ■ VCR® male or female face seal fitting |
| Element | Type 316L SS <6 MPa : C-type bourdon tube ≥6 MPa : Helical type bourdon tube |
| Case | Type 304SS, Electropolished with pressure relief |
| Cover and window | Twist-lock polycarbonate |
| Movement | Stainless steel |
| Pointer | Black painted aluminium alloy |
| Dial | White PVC, with pointer stop pin With black/red lettering, dual pressure scale (bar) |
| Helium leak rate | Tested to confirm leakage rates of less than 10 -9 mbar • ℓ/sec |
Standard features
Electrical
| Connection | 26 AWG, PVC 6 feet (2 m) |
| Maximum switching current | 0.5 amps AC/DC noninductive load |
| Maximum power | 10 W/DC, 12 VA/AC |
| Maximum switching voltage | 28 V AC/DC |
Đồng hồ đo áp suất P840 Wise -Đại lý wisecontrol Việt Nam
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Trực tuyến:4
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Hôm nay:3987
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Tuần này:4508
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Tháng trước:11925
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Tất cả:1971918
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